Q: 80 litres solution has juice and water in the ratio 3:2. 20 litres of this solution is taken out and replaced with 20 litres of water. Find the quantity of juice left in the mixture after this operation.
A: 36 litres
Q: The ratio of milk and water in mixtures of four are 5:3,2:1, 3:2 and 7:4 respectively. In which container is the quantity of milk, relative to water, minimum?
A: Third
Q: A dishonest milkman mixed 1 litre of water for every 3 litres of milk and thus made up 36 litres of milk. If he now adds 15 litres of milk to the mixture, find the ratio of milk and water in the new mixture.
A: 14 : 3
Q: A vessel contains 60 liter of wine, 12 litres of wine taken out from it and replaced by water. Then again from mixture. 12 litres is again taken out replaced by water. The ratio of wine and water in the resultant mixture.
A: 16 : 9
Q: A wine merchant purchase 54 litres of whisky at Rs. 2.20 per litre. How many litres of water must he add to enable him to retail it at Rs. 2.25 a litre and obtain a profit of 25% on his outlay?
A: 12 litres
Q: Acid and water are mixed in a vessel A in the ratio of 5:2 and in the vessel B in the ratio 8:5. In what proportion should quantities be taken out from the two vessels so as to form a mixture in which the acid and water will be in the ratio of 9:4?
A: 7:2
Q: An alloy contains Zinc, copper, tin in the ratio 2:3:1 and other contains copper, tin and lead in the ratio 5:4:3. If equal weights of both alloys are melted together to form a third alloy, then the weight of lead per kg in the new alloy will be.
A: 1/8 kg
Q: Two tins A and B contain mixtures of wheat and rice. In A, the weights of wheat and rice are in the ratio 2 : 3 and in B they are in the ratio 3 : 7. What quantities must be taken from A and B to form a mixture containing 5 kg of wheat and 11 kg of rice?
A: A = 2 kg, B = 14 kg
Q: Two alloys A and B are composed of two basic elements. The ratios of the compositions of the two basic elements in the two alloys are 5:3 and 1:2, respectively. A new alloy X is formed by mixing the two alloys A and B in the ratio 4:3. What is the ratio of the composition of the two basic elements in alloy X?
A: 1:1
Q: A mixture of 20 kg of spirit and water contains 10% water. How much water must be added to this mixture to raise the percentage of water to 25%?
A: 4 kg
Q: In what ratio should wheat and rice to be mixed so that after selling the mixture at the cost price at profit of 33.33% is made?
A: 1:3
Q: Two types of tea are mixed in the ratio 3:5 to make first quality and in the ratio 2:3 to make second quality. How many kilograms of first quality has to be mixed with 10 kg of the second quality so that the third quality having the two varieties in the ratio of 8:11 may be produced?
A: None of these
Q: Jansi mixed four quantities of the mixture containing acid and water in the ratio of 9:1, 13:7,17:3,11:9 respectively. What would be the ratio of water and acid in the resulting ratio?
A: 21:59
Q: 40 kg of an alloy A mixed with 100 kg of alloy B. If alloy A has lead and copper in the ratio 3:2 and alloy B has copper and tin in the ratio 1:3., then the amount of copper in the new alloy is
A: 41
Q: Find the ratio in which wheat of inferior quality (Rs.14/kg) be mixed with wheat of superior quality (Rs.28/kg) so that the shopkeeper gains Rs.2 by selling the resulting mixture at Rs.20/kg.
A: 5:2
Q: A jar of whisky contains 40% alcohol. A part of this whisky is replaced 19% of alcohol and now the percentage of alcohol was found to be 26%. Find the Ratio in which they were mixed ?
A: 1:2
Q: Vessel ‘A’ contains 150 litres of mixture of milk and water in the ratio of 3:1. Vessel ‘B’ contains 200 litres of the mixture in the ratio of 5:2. If the mixture from both the vessels are poured into vessel ‘C’, find the ratio of the resulting mixture.
A: 143:53
Q: A vessel contains 20 liters of a mixture of milk and water in the ratio 3:2. 10 liters of the mixture are removed and replaced with an equal quantity of pure milk. If the process is repeated once more, find the ratio of milk and water in the final mixture obtained?
A: 9:1
Q: In two alloys, the ratios of nickel to tin are 5 : 2 and 3 : 4 (by weight). How many kilogram of the first alloy and of the second alloy should be alloyed together to obtain 28 kg of a new alloy with equal contents of nickel and tin?
A: 7 kg of the first alloy and 21 kg of the second
Q: Three pots have the same volume. The ratio of milk and water in first, second and third pots are 3:2; 7:3 and 11:4 respectively. If the liquid of three pots are mixed, then the ratio of milk and water in the mixture is
A: 61:29
Q: A German silver alloy contains nickel and copper in the ratio 5:6 and 15 kg pure nickel is melted and mixed with it.If the resultant German silver alloy contains 60 kg of nickel, what is the weight of original German silver alloy?
A: 99 kg
Q: A grocer blends two varieties of sugar, one costing Rs. 40 per kg and the other Rs. 45 per kg in the ratio 3 : 2. If he sells the blended variety at Rs. 50.4 per kg then his gain percent is
A: 20
Q: 729 ml of a mixture contains milk and water in the ratio 7 : 2. How much more water is to be added to get a new mixture containing milk and water in ratio 7 : 3?
A: None of these
Q: Two alloys are both made up of gold and copper. The ratio of gold and copper in the first alloy is 1:3 and in the second alloy is 2:5. In what ratio should the two alloys be mixed to obtain a new alloy in which the ratio of copper and gold is 8:3?
A: 4:7
Q: A container contains 40 litres of milk. From this container ,4 litres of milk were taken out and replaced by water. The process was repeated further two times. How much milk is now contained by the container?
A: 29.16
Q: Two vessels contain milk and water in the ratio 3:2 and 7:3. Find the ratio in which the contents of the two vessels to be mixed to get a new mixture in which the ratio of milk and water is 2:1.
A: 1 : 2
Q: Two types of rice Rs.126/kg and Rs.135/kg are mixed with a third variety in ratio 1:1:2. If the mixture is worth Rs.153/kg,the price of the third varity will be:
A: Rs.175.50
Q: Presently a mixture in a tub contains substances A and B in a ratio of 7:5. If 9 litres of this solution is drawn out and B is added to the mixture in the same quantity thus the resulting mixture becomes 7:9. How many litres of liquid A were kept in the tub initially?
A: 21
Q: A and B are two alloys of gold and copper prepared by mixing metals in the ratio of 7:2 and 7:11 respectively. If we melt equal quantities of the alloys to form a third alloy C, then the ratio of the quantity of gold or the proportion of gold to the quantity of copper in C will be:
A: 7:5
Q: A container has 30 litres of juice, if 5 litres of juice is replaced by 5 litres of water and this operation is repeated once more time. What will be the quantity of juice in the new mixture?
A: 20.8 L